JourneyPattern¶

Status¶

Normative

Definition¶

A JourneyPattern defines the ordered sequence of points followed by a ServiceJourney during its planned operation.

It specifies the operational pattern of a journey independently of any particular operating day, vehicle assignment, or real-time operational conditions.

A JourneyPattern represents the planned sequence of locations that a vehicle journey follows and is independent of passenger-facing route identities.

Identity¶

The semantic identity of a JourneyPattern is established by the planned ordered sequence of PointInJourneyPattern instances that it contains.

A JourneyPattern remains the same semantic instance when:

different ServiceJourneys follow the same pattern;
different OperatingDays use the same pattern;
different PhysicalVehicles operate journeys using the pattern; or
real-time operational conditions differ.

Minor revisions to descriptive information do not necessarily establish a new JourneyPattern.

Changes to the planned ordered sequence of points normally establish a different JourneyPattern.

Implementation-specific identifier construction is defined by the relevant mapping specification.

Motivation¶

Public transport services frequently share common operational patterns.

Multiple ServiceJourneys may follow the same ordered sequence of stops while operating at different times or on different days.

Separating the JourneyPattern from the ServiceJourney avoids duplication and provides a stable semantic representation of the planned operational path.

Characteristics¶

A JourneyPattern:

represents a planned operational pattern;
consists of an ordered sequence of PointInJourneyPattern instances;
may be referenced by multiple ServiceJourneys;
is independent of any specific OperatingDay;
is independent of any PhysicalVehicle; and
is independent of real-time operational information.

Relationships¶

ServiceJourney¶

A JourneyPattern may be followed by one or more ServiceJourneys.

Each ServiceJourney normally follows one JourneyPattern.

PointInJourneyPattern¶

A JourneyPattern consists of one or more PointInJourneyPattern instances.

The ordering of these points forms the planned operational sequence.

PublicTransportRoute¶

A JourneyPattern may be associated with one PublicTransportRoute.

A route groups related services for passengers, whereas the JourneyPattern defines the detailed operational sequence.

Typical Properties¶

Typical semantic properties include:

identifier
name
direction
sequence of PointInJourneyPattern
geometry
operational characteristics

The presence of a typical property does not make it mandatory.

This semantic model does not prescribe implementation-specific property names, value encodings, or data structures.

Origin¶

This semantic concept is adopted primarily from:

Transmodel — JOURNEY PATTERN

SCRA Schema adopts the Transmodel definition without changing its fundamental meaning.

Mapping Guidance¶

Typical mappings include:

Source	Semantic Mapping
Transmodel `JOURNEY PATTERN`	JourneyPattern
GTFS `shapes.txt`	Geometry contributing to JourneyPattern
GTFS ordered `stop_times.txt`	Ordered PointInJourneyPattern sequence

GTFS does not explicitly define JourneyPattern.

A JourneyPattern is inferred from the ordered operational structure of stop_times.txt, optionally supported by shapes.txt.

This section is informative and does not form part of the normative semantic definition.